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Bellless blast furnace charging method

机译:无钟高炉装料方法

摘要

PROBLEM TO BE SOLVED: To provide a method for charging a charging material in a bell less blast furnace, capable of stabilizing a peripheral flow rising along the furnace wall of the blast furnace.SOLUTION: The method for charging a charging material in a bell less blast furnace includes alternately laminarly charging a C batch of coke and an O batch of ore. The charges of 4 batches C, C, Oand Oare performed in the order of the steps of: forming an inclination coke layer having a Cbatch downward inclined toward the center of the furnace from the furnace wall side; charging a Cbatch in the central part of the furnace; charging an Obatch from the furnace wall toward the center to form a horizontal type terrace having approximately horizontal shape on the furnace wall side and an inclination ore layer downward inclined toward the center of the furnace from the furnace inner side tip of the horizontal type terrace; and charging an Obatch on the horizontal type terrace of the Obatch layer. The Obatch consists of a fine grain ore having a size of more than 3 mm and 6 mm or less.
机译:解决的问题:提供一种在无罩鼓风炉中装入装料的方法,该方法能够稳定沿高炉炉壁上升的外围流。解决方案:在无罩鼓风炉中装入装料的方法高炉包括交替层流装入C批次的焦炭和O批次的矿石。按照以下步骤的顺序进行4批C,C,O和O的装料:形成具有Cbatch的倾斜焦炭层,该Cbatch从炉壁侧朝炉的中心向下倾斜;在炉子的中部装满碎屑;从炉壁向中心装填阻挡物,以在炉壁侧形成大致水平形状的水平型平台,并从水平型平台的炉内侧尖端向炉的中心向下倾斜的倾斜矿石层;并在Obatch层的水平类型平台上对Obatch进行充电。矿块由粒度大于3毫米且小于等于6毫米的细颗粒矿石组成。

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